Added command line compiling with MSVC

That's just a reference file, needs review

project/vs2015/raylib/build.bat

@@ -0,0 +1,20 @@
+@echo off
+set Libraries=glfw3.lib raylib.lib user32.lib gdi32.lib shell32.lib
+set CompilerFlags= /MD /Z7 /FC /nologo 
+set LinkerFlags=-subsystem:Console
+set bits=x86
+set LibraryLocation=..\deps\lib\%bits%\
+
+for %%* in (.) do set CurrDirName=%%~nx*
+mkdir build > NUL 2> NUL
+pushd build
+IF NOT DEFINED vcvars_called (
+    call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %bits%
+    set vcvars_called=1
+)
+REM xcopy %LibraryLocation%glfw3.dll > NUL 2> NUL
+ctime -begin %CurrDirName%.ctm
+cl %CompilerFlags% ..\code\main.cpp /I..\deps\include /link -incremental:no /LIBPATH:%LibraryLocation% %Libraries% %LinkerFlags% -out:main.exe
+set LastError=%ERRORLEVEL%
+ctime -end %CurrDirName%.ctm
+popd